Disconnect switch with latch
US4707574A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 23, 1986 |
| Grant date | Nov 17, 1987 |
| Priority date | — |
| Expiry date | Oct 23, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H31/006
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electric disconnect switch having fixed and movable contacts includes a latch mounted for limited oscillating and sliding movement on the movable contact and operable by a manual operating member, a ramp fixedly mounted on the fixed contact and having a latching surface engageable by the latch, a biasing device arranged to bias the latch in a direction to maintain the latch in engagement with the latching surface, together with a low friction device mounted on the movable contact and engageable with a part of the latch during a switch closing operation to impart closing movement to the movable contact in response to closing movement of the operating member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.